Multi-objective on-line regulation and control method of power quality control equipment group based on SVG

Abstract

The invention discloses a SVG-based multi-objective on-line regulation and control method for power quality management equipment group, comprising the following steps: real-time collecting bus voltage, current and load current signals and calculating system parameters; The capacity of the power quality management equipment group is allocated, and the intelligent allocation strategy is adopted to control the equipment. The load harmonic distortion rate and its contents are measured, and the frequency dividing compensation strategy is used to control the equipment. According to different controltargets, the adoption of an intelligent allocation strategy, Energy replacement strategy and frequency division compensation strategy can optimize the equipment configuration, coordinate and controlthe output proportion of equipment group, realize the multi-objective automatic regulation and control of power quality management equipment group in the region, solve the mutual influence problem between multi-power quality management equipment, and improve the overall power quality management ability and efficiency.

Description

technical field [0001] This patent relates to the field of power electronics technology, in particular to an SVG-based multi-objective online regulation method for power quality control equipment groups. Background technique [0002] The access of distributed power sources, nonlinear loads, impact loads, and power electronic equipment in the active distribution network has led to higher and higher requirements for power supply reliability and power quality in the distribution network, and the continuous increase in power quality control equipment , such as static var generator (SVG), static var compensation device (SVC), active filter (APF), dynamic compensation device (TSC), fixed filter (FC), etc., when these devices are put into use, It will cause mutual disturbance and coupling among the various devices. [0003] At present, mature power quality products include SVG equipment, SVC equipment, APF equipment, TSC equipment, and FC equipment, but these equipment have single...

AI Technical Summary

Problems solved by technology

There are many types of single-target power quality control equipment in the distribution network system. When multiple types of power quality problems coexist, multiple sets of different target control devices need to be used together. In the process of use, there are low equipment utilization and slow response speed. Problems such as poor compensation effect, and mutual interference and influence between different types of power quality equipment

The traditional static var generator (SVG) can only coordinate the parallel operation of the target equipment through the master-slave mode, and cannot coordinate the operation of multi-objective and multi-power quality control equipment, and cannot meet the needs of multi-objective control of power quality and multi-objective in the distribution network

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